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//===-- NVPTXMCExpr.cpp - NVPTX specific MC expression classes ------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#define DEBUG_TYPE "nvptx-mcexpr"
#include "NVPTXMCExpr.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/MC/MCAssembler.h"
#include "llvm/MC/MCContext.h"
using namespace llvm;
const NVPTXFloatMCExpr*
NVPTXFloatMCExpr::Create(VariantKind Kind, APFloat Flt, MCContext &Ctx) {
return new (Ctx) NVPTXFloatMCExpr(Kind, Flt);
}
void NVPTXFloatMCExpr::PrintImpl(raw_ostream &OS) const {
bool Ignored;
unsigned NumHex;
APFloat APF = getAPFloat();
switch (Kind) {
default: llvm_unreachable("Invalid kind!");
case VK_NVPTX_SINGLE_PREC_FLOAT:
OS << "0f";
NumHex = 8;
APF.convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven, &Ignored);
break;
case VK_NVPTX_DOUBLE_PREC_FLOAT:
OS << "0d";
NumHex = 16;
APF.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &Ignored);
break;
}
APInt API = APF.bitcastToAPInt();
std::string HexStr(utohexstr(API.getZExtValue()));
if (HexStr.length() < NumHex)
OS << std::string(NumHex - HexStr.length(), '0');
OS << utohexstr(API.getZExtValue());
}
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